Johann Friedrich Lorenz

Johann Friedrich Lorenz (born November 20, 1737 in Halle an der Saale , † June 16, 1807 in Magdeburg ) was a German mathematician and educator.

Lorenz was the son of the merchant Johann David Lorenz in Halle and attended the orphanage school ( Francke Foundations ) and the university there. He studied Protestant theology from 1754 to 1758 and was then tutor of the Nostitz family in Upper Lusatia . In 1763 he became a teacher at the school of the orphanage in Halle, 1769 sub-rector of the grammar school in the old town of Magdeburg, 1772 rector of the city school in Burg near Magdeburg and in 1775 senior teacher at the pedagogy of the Berge monastery near Magdeburg, where he was history, philosophy and later mathematics and Taught science. In 1796 he became a professor. He was also vice principal of the school with Johann Gottfried Gurlitt . In 1806 he was retired.

He translated Euclid's elements from Greek into German and wrote a multi-volume overview of mathematics ( outline of pure and applied mathematics ), which he was still working on after his retirement during the turmoil of the Napoleonic Wars, but which remained unfinished . A 5th edition of the work was published in 1820 by Christian Gerling in Marburg. He also wrote a botany textbook.

In 1798 he became a corresponding member of the Academy of Sciences in Göttingen .

Fonts

• Euclid's six first books on the geometrical beginnings for the use of schools , from the Greek, Halle 1773 (preface by Johann Andreas von Segner )
• Sermon on the works of nature , Leipzig 1774
• Euclid's Elements , 15 books, from the Greek, Halle 1781, 6th edition 1840
• Outline of theoretical and practical botany for schools , Leipzig 1781
• Outline of the technical mathematics , Leipzig 1786
• The elements of mathematics in six books , 2 volumes, 1785/86, 2nd edition in 3 volumes 1793 to 1797
• Outline of pure and applied mathematics or first course of all mathematics , Th.1 - 2 and appendix 1791-1792 ( digitized version )
• Outline of pure and applied mathematics or first course in all of mathematics , 2 volumes, 1791, 1792, 6th edition, 1835 to 1837
• Mathematics teaching concept , 2 volumes, 1803 to 1806

See also

• Quadrature the polygon

Web links

• Siegmund Günther:  Lorenz, Johann Friedrich . In: Allgemeine Deutsche Biographie (ADB). Volume 19, Duncker & Humblot, Leipzig 1884, p. 180.
• Biography of Uwe Förster, University of Magdeburg

Individual evidence

1. ↑ Holger Krahnke: The members of the Academy of Sciences in Göttingen 1751-2001 (= Treatises of the Academy of Sciences in Göttingen, Philological-Historical Class. Volume 3, Vol. 246 = Treatises of the Academy of Sciences in Göttingen, Mathematical-Physical Class. Episode 3, vol. 50). Vandenhoeck & Ruprecht, Göttingen 2001, ISBN 3-525-82516-1 , p. 155.